Piping type vortex shedding flowmeter

1.Brief introduction 
It measures volume flow of gas, steam and liquid based on Karman theory. 
2.Features 

No movable parts, long term stability, simple structure, convenient for installation and maintenance;
Transducer output is impulse frequency;
High accuracy, stable performance, and multiple structures;
Flexible installation method;

3.Application

It is widely applied in large, middle and small size pipeline discharging field, industrial circulating, sewage treatment, oils, chemical reagents, compressed air, saturated steam, natural gas and various medium flow measurements.

4.Technical index
 

executive standard	(JB／T9249—1999)
caliber(mm)	15.20.25.32.40.50.65.80.100. 125.150.200.250.300
nominal pressure(MPa)	1．6MPa. 2．5MPa.4．OMPa
accuracy level	liquid: ±1％ gas or steam: ±1.5％.±1％
range ratio	1∶10; 1∶15; 1∶20
material of sensor	304 stainless steel.316(L) stainless steel等
application condition	medium temperature: -40°C～+250°C.-40°C～+350°C environment temperature: -20°C～+60°C relative humidity: 5％～90％ air pressure: 86Kpa～106Kpa
signal output function	pulse signal.4～20mA
communication output function	RS485 .HART
hazardous rating	ExiaIICT5 or ExdIIBT6
level of protection	IP65 or higher

 
Structural style and installation size 
1.flange connection type

DN	L	H	installation flange				construction bolt		specifications of matched pipes
			flange exterior diameter	flange thickness	hole spacing	bolt hole diameter	quantities	specifications
15	180	415	95	14	65	14	8	M12×60	φ18×1.5
20	180	420	105	16	75	14	8	M12×60	φ25×2.5
25	180	425	115	16	85	18	8	M16×60	φ32×3.5
32	180	435	140	18	100	18	8	M16×70	φ39×3.5
40	180	435	150	18	110	18	8	M16×70	φ48×4
50	180	440	165	20	125	18	8	M16×70	φ59×4.5
65	180	460	185	20	145	18	8	M16×70	φ74×4.5
80	200	490	200	20	160	18	16	M16×70	φ89×4.5
100	220	510	220	22	180	18	16	M16×80	φ109×4.5
125	240	535	250	22	210	18	16	M16×80	φ134×4.5
150	170	570	285	24	240	22	16	M20×80	φ159×4.5
200	300	625	340	26	295	22	24	M20×90	φ219×9
250	320	685	405	28	355	26	24	M24×100	φ273×11
300	350	710	460	32	410	26	24	M24×100	φ325×12

flange type　　

DN	L	Lo	H	D	specifications of matched pipes
15	80	116	400	68	φ18×1.5
20	80	116	400	68	φ25×2.5
25	80	116	400	68	φ32×3.53
32	80	116	400	68	φ39×3.5
40	80	116	404	80	φ49×4.5
50	80	116	412	88	φ59×4.5
65	80	116	428	105	φ74×4.5
80	80	116	446	120	φ89×4.5
100	80	118	472	148	φ109×4.5
125	85	124	492	174	φ134×4.5
150	90	135	515	196	φ159×4.5
200	105	150	570	250	φ219×9
250	120	166	620	300	φ273×11
300	135	185	670	350	φ325×12